Button back



Feb. 17, 1948. E. A. NYARb BUTTON BACK Filed Oct. 6, 1945 INVENTQR BY ,fiJYpgazrd ATTORNEYS Patented Feb. 17, 1948 UNITED STATES ATENT OFFICE BUTTON BACK Erik A. Nygard, Woonsocket, n. 1.

Application ctober'6, 1945, Serial No. 620,764

3 Claims.

rangement no lock for the parts and the resiliency of a fabric to apply a tension on the parts is relied upon to hold them in position.

One of the objects of this invention is to provide a button back which may be forced into position without rotation and which will be mains tained in such position securelyh Another. object of this invention is to provide -a button back which cannot be released by straight axial nonrotative movement but which will require relative rotation with reference to the stud in order to release it.

Another object of this invention is to provide a button back which may be easily and quickly moved along the major portion of the stud but which will require some relative rotation for finally securing the same into position.

Another object of the invention is to provide a button back which may be easily and quickly used for mounting the button upon cards for retail sales.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a perspective view of a button with my button back in position thereon;

Fig. 2 is an exploded perspective view of the various parts of the button and its back;

Fig. 3 is a diametric sectional view of the button back shown mounted upon the stud of the button.

Fig. 4 is a view similar to Fig. 3 with a somewhat modified form of stud and with the parts in a different position.

In proceeding with this invention I provide a resilient washer-like member having an opening therein through which the stud of the button may pass. The stud will be provided with screw threads and if the edges of the epening through which the stud passes flex a substantial amount, the stud may pass through this opening. However, if I control the movement of the edges about the opening to suitably limit their 2 1 movement, then this stud is prevented from passing throughthe opening. Thus utilizing this type of control, I provide a plate on oneside of the washer-like member locked so closely tothe member about the opening that the edges cannot be flexed sufficiently to permit the stud to pass, whereas I provide a plate on the other side of the opening which is arched outwardly from these edges so that these edges may freely iiex in this direction and permit the stud to passthrough the opening when the edges are flexed in this direction. Thus, I provide an arrangement so that the button backmaybe forced onto the stud by movement in one direction but which cannot be forced from the stud bymovement in the oppositedirection. 1

With reference to the drawings, ID designates a button having an ornamental face Hand which is provided with a stud I2 having screw threads I3 along its surface.

The button back consists of a resilient rubberlike washer member I4 which may be formed of rubber, neoprene, or some synthetic plastic having substantially the properties of these materials which will be elastically resilient sufficiently to return to the position from which it has been deformed. This member I 4 is provided with a substantially central opening I5 which is of a size a little smaller than the stud I2 so as to grip the same. The serrations or threads I3 on the stud will prevent the sliding of the member i l therealong but if the edges I6 of the opening I5 are flexed in one direction such as shown in Fig. 3, then the opening I5 becomes sufficiently large so as to permit the stud l2 to pass therethrough. This will occur when the button stud is forced in the direction of the arrow I! or the button back forced in the direction of the arrow l8.

The button back 20 comprises a washer l4 which has a casing provided about it. This casing consists of a flat plate 2| having an opening sufficiently large to permit passage of the stud l2 and the plate is offset as at 22 to provide a recess 23 in its edge peripherally thereabout. The other member of the casing is designated 24 and consists of a plate which is arched outwardly as at 25 as shown in Figs. 3 and 4 but which is rolled over as at 26 into the recess 23 so as to bind the edge of the washer member I4 between it and the plate 2|. An opening may or may not be provided as at 21 so as to receive the stud therethrough. The outwardly arched portion 25 of this plate 24 is so spaced as to permit the free flexing of the edges I6 of the rubber-like washer shown inFig. 4 or most any other type. 7 threads, of course; cannot be stripped by the button back used.

in this direction. The plate 2! is so closely adjacent to the washer I4 as shown in Fig. 4 that the edges are engaged if attempted tobe flexed in this direction and thus they cannot flex sufficiently to permit the stud to pass through them such as might occur by reason of relative movement of the parts as shown by the arrows 28 and 29. Thus, in order to detach the parts it would be necessary to relatively rotate them so that a screw .is present so that prongs to engage the fabric may -.be eliminated and thus less hazard of injuring the fabric is present.

The stud l2 may have a square end as shown in Fig. 3. or it may be pointed as in Fig. 4. The threads may be either of the machine screw type as shown in Fig. 3 or of the wood screw type as These away from the member at said opening to permit the edges of the member about the opening to fiexinto the arched portion sufiiciently to pass the stud therethrough and a second plate on the jother side of said member having an opening to register with the opening in the rubber member and attached to the first plate at its edges to limit the flexing of the edges of said opening so as to maintain them in engagement with said stud to bind on the stud whereby the stud may be axially slid in one direction only.

2. A button back as set forth in claim 1 wherein the limiting plate is flat and in substantially one plane.

3. A button back for engaging a screw threaded stud comprising a resilient rubber-like member having an opening therein to receive and grip the threads of the stud, but flexible along the edges of said opening sufficiently to swing outwardly and permit the stud to be pressed therethrough, a first plate on one side of the member engaging the outer edges thereof but arched away from the member at the location of said opening and stud to permit the edges of the opening to be flexed into said arched portion suificiently to pass said stud and a second plate on the other side of said member having an opening to register with the opening in the rubber member and attached to the first plate at its edges and closely adjacent said member at said opening to engage the edges of said-opening and limit the movement of the edges to prevent said stud from sliding therethrough in adirection outwardly of the last said plate, said parts permitting axial movement of the screw threaded studs by relative rotation thereof with reference to said back.

ERIK A. NYGARD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,292,338 Lobar'; Jan. 21, 1919 1,349,761 Helwig Aug. 17, 1920 1,375,231 Rovelli Apr. 19, 1921 2,144,926 Lawton Jan. 24, 1939 

